diff --git a/plugins/api.c b/plugins/api.c
index 5a0a7f8..6bdb26b 100644
--- a/plugins/api.c
+++ b/plugins/api.c
@@ -507,7 +507,7 @@
         }
 
         /* Create a record for the plugin */
-        desc.handle = GINT_TO_POINTER(grd->gdb_reg);
+        desc.handle = GINT_TO_POINTER(grd->gdb_reg + 1);
         desc.name = g_intern_string(grd->name);
         desc.feature = g_intern_string(grd->feature_name);
         g_array_append_val(find_data, desc);
@@ -528,7 +528,7 @@
 {
     g_assert(current_cpu);
 
-    return gdb_read_register(current_cpu, buf, GPOINTER_TO_INT(reg));
+    return gdb_read_register(current_cpu, buf, GPOINTER_TO_INT(reg) - 1);
 }
 
 struct qemu_plugin_scoreboard *qemu_plugin_scoreboard_new(size_t element_size)